The interesting thing was the original blob was a commie surrogate. Mindless red mass bent onconsuming everyone into itself. We were afraid of "duh commeez" in the 50's. Movie monsters represented our fears.

No one was afraid of "duh commeez" in the 80's. So the blob became a US government experiment and the government was willing to let the town be eaten to keep it and keep it secret. We we're more afraid of our own government in the 80's than "duh commeez".